/** 
  * @author Ji Ye Choi <cgycgy@naver.com>
  * @version 1.9
  * @since 2010-11-06
  */ 

public interface Comparable<Money> {
	public int compareTo(Money o);
	public Money plus(Money money);
	public Money minus(Money money);
	public Money times(double factor);
	public Money dividedBy(double divisor);
	public Money negate();
}
